Free converter
DOCDOCXDOC to DOCX Converter
The .doc format is nearly two decades out of date, and files in it are increasingly awkward — larger, less compatible, and flagged by security policies that block old Office formats. Converting to DOCX is a one-run fix for a whole archive.
Drop in your files — A .docx per document, in the folder you choose.
Why convert
Why convert DOC to DOCX?
DOCX is smaller, is a documented open standard, and is what every current application expects. Legacy .doc files also carry a macro format that many mail systems and security policies now block outright, so old documents can simply fail to arrive.
- An archive of old documents needs bringing up to date in one pass.
- Email or security policy is blocking legacy Office attachments.
- A tool or service you use accepts DOCX only.
- You want smaller files that open reliably in current software.
How it works
Convert DOC to DOCX in a few clicks
- 1
Open Office Converter
Pick it from the tray; the engine downloads once on first use.
- 2
Add the DOC files
Point it at the whole archive folder if you like — there is no cap.
- 3
Choose DOCX
Select it as the target format.
- 4
Convert
Set the output folder and run. The originals stay where they are.
The details
DOC to DOCX, at a glance
- Input
- DOC (Word 97–2003)
- Output
- DOCX, the current Word format
- Preserved
- Text, styles, lists, tables and embedded images
- Macros
- Not carried across — the output is a plain document, not a macro-enabled one
- Engine download
- ~400 MB document engine, once, on first use
- Limits
- No page cap, no size cap, no watermark
Questions
DOC to DOCX Converter, answered
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Convert DOC to DOCX — free
It's one tool inside BizTray, alongside the PDF Organizer, PDF Tools, and Fill & Sign. One small download, no account.
Local, private, no watermark.